Answers
Answer:
b. (4,2)
Step-by-step explanation:
step one: isolate x in the first equation
substitute x=6-y: [tex]\begin{bmatrix}2\left(6-y\right)-2y=4\end{bmatrix}[/tex]
[tex]\begin{bmatrix}12-4y=4\end{bmatrix}[/tex]
[tex]-4y=-8[/tex]
[tex]y=2[/tex]
step two: isolate y in the second equation, substitute y=2
[tex]x=6-y[/tex]
[tex]x=6-2[/tex]
[tex]x=4[/tex]
Answer:
b
Step-by-step explanation:
Given the 2 equations
3x + 3y = 18 → (2)
2x - 2y = 4 → (2)
Multiplying (1) by 2 and (2) by 3 and adding the result will eliminate the y- term
6x + 6y = 36 → (3)
6x - 6y = 12 → (4)
Add (3) and (4) term by term to eliminate y
12x + 0 = 48
12x = 48 ( divide both sides by 12 )
x = 4
Substitute x = 4 into either of the 2 equations and solve for y
Substituting into (1)
3(4) + 3y = 18
12 + 3y = 18 ( subtract 12 from both sides )
3y = 6 ( divide both sides by 3 )
y = 2
solution is (4, 2 ) → b
Related Questions
Solve the equation x - 20.7 = 9.5 for X
Show your work.
Answers
Answer: look at the picture
Step-by-step explanation: Hope this help :D
Answer:
x=30.2
Step-by-step explanation:
30.2-20.7=9.5 So therefore x=30.2
A three-dimensional figure has a volume of 314 cubic centimeters rounded to the nearest cubic centimeter. Select whether each shape below, with dimensions given in centimeters (cm), matches this three-dimensional figure.
A sphere with a radius of 4.217 cm (true or false)
A sphere with a diameter of 4.217 cm (true or false)
A cone with a radius of 10 cm and a height of 3 cm(true or false)
A cylinder with a radius of 1 cm and a height of 10 cm(true or false)
A cylinder with a radius of 4.47 cm and a height of 5 cm(true or false)
Answers
Answer:
The first one and the third one are true and the rest are false
Step-by-step explanation:
Answer:
first and therd are right
Step-by-step explanation:
In a popular online role playing game, players can create detailed designs for their
character's "costumes," or appearance. Luke sets up a website where players can buy
and sell these costumes online. Information about the number of people who visited
the website and the number of costumes purchased in a single day is listed below.
204 visitors purchased no costume.
209 visitors purchased exactly one costume.
27 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase one
or more costumes as a fraction in simplest form.
Answers
Answer:
59/110
Step-by-step explanation:
Based on these results, express the probability that the next person will purchase one or more costumes as a fraction in simplest form.
204 no costume, 209 exactly one costume, 27 more than one costume.
204+\color{steelblue}{209}+\color{steelblue}{27}=
204+209+27=
\,\,\color{indianred}{440}
440
There were a toal of 440 customers. 209+27=236 visitors purchased one or more costumes costumes.
Probability the next visitor will purchase one or more costumes:
\frac{\color{steelblue}{236}}{\color{indianred}{440}}=
440
236
=
\,\,\frac{59}{110}
110
59
What is the surface area of the cylinder with height 6 in and radius 7 in? Round your answer to the nearest thousandth.
Answers
Answer:
571.77
Step-by-step explanation: I might be wrong so don't really trust me
What is the value of x that makes angle G a right angle in circle I?
Answers
Step-by-step explanation:
The answer is 12 bro
Thank me pls
Answer this, please.
Answers
13 runners
Just add up the number that all the bars hit and you get 13
Happy answering!
Jose has scored 866 points on his math tests so far this semester. To get an A for the semester, he must
score at least 946 points.
Part 1 out of 2
Enter an inequality to find the minimum number of points he must score on the remaining tests in order to
get an A. Let n represent the number of points Jose needs to score on the remaining fests.
Answers
Answer:
ur question is more clarification
Step-by-step explanation:
Answer:
I don't know this
Step-by-step explanation:
Not enough info to solve it...can you post part 2 as well?
I don’t know if this is correct !!!!!!! Please answer correctly !!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answers
Plz help I’m bad with angles
Answers
Answer:
Complementary angles,7 & 83
Supplementary angles, 97 & 83
Vertical angles, 83 & 83
Step-by-step explanation:
Complementary angles add up to 90°
Supplementary angles add up to 180°
Vertical angles are equal
Can someone plzzz helppp meeee!!!
Answers
Answer:
130
Step-by-step explanation:
Hello There!
An included angle is equal to half the measure of its included arc
So more specifically for this circle
∠mABC = [tex]\frac{1}{2}[/tex] arc(mAB)
So in order to find the value of x we are going to want an equation
Because angle ABC is equal to 1/2 of arc AB we are going to want to multiply angle ABC's expression by two
So 2(3x+32) = 10x+20
now we solve for x
step 1 distribute the 2
2 * 3x = 6x
2 * 32 = 64
now we have
6x + 64 = 10x + 20
step 2 subtract 20 from each side
64 - 20 = 44
20 - 20 cancels out
now we have 6x + 44 = 10x
step 3 subtract 6 x from each side
10x - 6x = 4x
6x - 6x cancels out
now we have 44 = 4x
step 4 divide each side by 4x
44/4=11
4x/4=x
we're left with x = 11
finally we want to plug in 11 to x for (10x+20)
10(11)+20
10*11=110
110+20=130
so arc ab = 130
Answer:
AB = 130
Step-by-step explanation:
So, according to a certain theorem to do with arcs and their angles, If a tangent and a chord intersect at a point on a circle, then the measure of each angle formed is one half the measure of its intercepted arc.
In this case, the ARC is AB, and the angle is CBA.
CBA = 3x+32
AB = 10x+20
And,
[tex]CBA = \frac{1}{2} AB[/tex]
Now,
[tex]3x+32=\frac{1}{2} (10x+20)[/tex]
[tex]3x+32=5x+10\\32=2x+10\\22=2x\\11=x[/tex]
Now we can substitute x into the equation that equals AB
[tex]10(11)+20 \\=110+20\\=130[/tex]
So, the answer is 130, sorry I took a while, the explanation takes a long time to do lol.
Have a nice day fam. Spread The Love.
Leia is trying to find the best price for 6 pairs of colored shoelaces. If 3 pairs of colored shoelaces cost $20 at Sprint Sneakers, and 2 pairs of colored shoelaces cost $12 at Shoe Sanctuary, how many dollars will Leia save if she buys 6 pairs of colored shoelaces from Shoe Sanctuary instead of Sprint Sneakers?
Answers
Answer:16
Step-by-step explanation:
Sprint is 2shoe sanc. 2 for 12
2
4
6 36 - 20 is 16
12
24
36
Helppppp please it’s timed
Answers
Answer:
Estimated population of New Hampshire is
A. 35,000
Find the value of x 6x+2
Help Due in 30 mins!
Answers
Answer:
Step-by-step explanation:
(6x + 2)° + 42° + 58° = 180°
6x + 2 = 180 - 100
6x = 78
x = 13
Answer:
13
Step-by-step explanation:
There are 180 degrees in a triangle
58 + 42 + (6x +2 ) = 180
98 + (6x + 2) = 180
Subtract 98 from 180.
6x +2 = 82
Subtract 2 from 82
6x = 80
x = 13.333 or 40/3
Giving brainliest!! TO FIRST PERSON 9x8?
Answers
Answer:
9x8=72
9x5=45 9x3=27 45+27=72
PLS HELP ME! I’m tired.
Answers
Answer:
30.5*10=350$
Step-by-step explanation:
you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.
hope it helps
The population of town is 32600. about 27% are over 60 years old. About 19% are 16 or under. How many are between 16 and 60?
Answers
Answer:
Number of population between 16 and 60 =17,604
Step-by-step explanation:
population of town = 32600
Percentage of people over 60 years old=27%
Percentage of people 16 or under =19%
Percentage of people between 16 and 60= 100%-(27% +19%)
100-(46) =54%
Number of population between 16 and 60 =Percentage of people between 16 and 60 x population of town
=54% x 32600
=17,604
What is the critical value z* for constructing an 80% confidence interval?
Answers
Answer:khan is 1.282 or c
Step-by-step explanation:
Olivia is an athlete. During training this morning, she ran three laps. It took her 5 6minute to finish the first lap. The second lap took her 1 12more minutes than the first lap. The third lap took her 1 10less minutes than the second lap. How much time did it take her to finish the third lap?
Answers
Answer:
First lap time = 5/6 minute
Second lap time = 11/12 minute
Third lap time = 49/60 minute
Step-by-step explanation:
:))
Olivia is an athlete. During training this morning, she ran three laps. It took her 5 6minute to finish the first lap. it takes her to finish the third lap time in 49/60 minutes.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Olivia is an athlete. During training this morning, she ran three laps. It took her 5 6minute to finish the first lap.
The second lap took her 1 12more minute than the first lap.
The third lap took her 1 10less minute than the second lap.
First lap time = 5/6 minute
Second lap time = 11/12 minute
Third lap time = 49/60 minute
Learn more about the unitary method;
https://brainly.com/question/23423168
#SPJ2
A town has a population of 15,000 and grows at 7% every year. What will be the
population after 10 years, to the nearest whole number?
Answers
Answer:
29,507
Step-by-step explanation:
Simple way just do 15,000 x 1.07. Take that number and multiply by 1.07. Do that 10 time.
I need help graphing this
Answers
Answer: y=4/3x-2
Y-Intercept: -2
Slope: 4/3
Step-by-step explanation:
On the Y-Axis put -2 because thats the Y-intercept.
And for slope graph a slope of 4/3
The difference of 1 and twice a number is at most one third the
number(Which of the following models this description?
A. 21 – 2x<_ 1/3x
B. 21 – 2x = 1/3x
C. 21 – 2x >_ 1/3x
D. 21 – 2x < 1/3x
Answers
Answer:
Step-by-step explanation:?
HELP!!! What’s the domain and range? PLS!!!!
Answers
Answer:
A) Vertex: (3,1) Maximum, Domain: all real numbers, Range: y is less than or equal to 1.
B) Vertex: (1,-5) Minimum, Domain: all real numbers, Range: y is greater than or equal to -5
C) Vertex: (0,1) Minimum, Domain: all real numbers, Range: y is greater than or equal to 1
D) Vertex: (4,0) Maximum, Domain: all real numbers, Range: y is less than or equal to 0.
E) Vertex: (4,1) Minimum, Domain: all real numbers, Range: y is greater than or equal to 1
F) Vertex: (-1,4) Maximum, Domain: all real numbers, Range: y is less than or equal to 4.
G) Vertex: (2,-4) Minimum, Domain: all real numbers, Range: y is greater than or equal to -4
H) Vertex: (-4,-3) Minimum, Domain: all real numbers, Range: y is greater than or equal to -3
I) Vertex: (2,3) Maximum, Domain: all real numbers, Range: y is less than or equal to 3.
Step-by-step explanation:
Sorry it took forever to type
Solve for x.
A) 4
C) 1
B) 10
D) 12
Answers
Answer:
A) 4
Step-by-step explanation:
3*4 = 12
1+12=13
3m^n+12mn^2 with an explanation please !
Answers
Solve this equation:
945 = 210T
Answers
Answer:
T=9/2 alternate form T=4 1/2, T=4.5
Step-by-step explanation:
you have to divide both side
explanation: u divide
8 added to the product of 7 and x cubed
Answers
Answer:
7x³+8
Step-by-step explanation:
I'm guessing that you are looking for the equation
7+8=15
So the answer is 15 not sure though might wanna double check urself
The two lines graphed on the coordinates grid each represent an equation
Which prefer pair represents a solution to both equations.?
A- (-4,0)
B- (-2,1)
C- (0,-4)
D- (1,-2)
Answers
find the value of the reciprocal of 0.25
give your answer as a decimal
Answers
Answer:
the reciprocal of 0.25 is 4.
AB is the angle bisector of ∠CAD. Solve for x.
(I really need help on this one cuz i.dk what I'm doin')
Answers
Answer: x=7
Step-by-step explanation:
Since AB is a bisector, it cuts the angle in half, and since we know that the angle is a right angle, we know it’s 90 degrees, so knowing that you use the equation 7x-4= 45 (since 45 is half of 90), add 4 to both sides so you have 7x=49, the divide 49 by 7 and you get 7, so x= 7
Solve the system by substitution 5x+2y=17 -4x+7=y
HELP PLEASEEE
Answers
Answer:
y=−9/2 x+12
HEART IF IT HELPED!!